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EUVD-2026-344905

European Vulnerability Database identifier assigned by ENISA

Reserved

2026-10-02 07:58

Assigner

ENISA

Alias of

a CVE record, shown under related vulnerabilities. This identifier carries no description, severity or references of its own: they belong to that CVE.

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{
  "assigner": "ENISA",
  "date_reserved": "2026-10-02T07:58:36.918888+00:00",
  "id": "EUVD-2026-344905"
}

CVE-2022-50384 (GCVE-0-2022-50384)

Vulnerability from cvelistv5 – Published: 2025-09-18 13:33 – Updated: 2026-08-05 08:58

Title

staging: vme_user: Fix possible UAF in tsi148_dma_list_add

Summary

In the Linux kernel, the following vulnerability has been resolved: staging: vme_user: Fix possible UAF in tsi148_dma_list_add Smatch report warning as follows: drivers/staging/vme_user/vme_tsi148.c:1757 tsi148_dma_list_add() warn: '&entry->list' not removed from list In tsi148_dma_list_add(), the error path "goto err_dma" will not remove entry->list from list->entries, but entry will be freed, then list traversal may cause UAF. Fix by removeing it from list->entries before free().

Severity

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-01-14 18:48 UTC

CWE

CWE-416 - Use After Free

Assigner

Linux mitre root Scorecard

References

9 references

URL	Tags
https://git.kernel.org/stable/c/5cc4eea715a3fcf4e…
https://git.kernel.org/stable/c/51c0ad3b7c5b01f93…
https://git.kernel.org/stable/c/e6b0adff99edf246b…
https://git.kernel.org/stable/c/a45ba33d398a82114…
https://git.kernel.org/stable/c/5d2b286eb034af114…
https://git.kernel.org/stable/c/1f5661388f43df3ac…
https://git.kernel.org/stable/c/cf138759a7e92c75c…
https://git.kernel.org/stable/c/85db68fc901da5231…
https://git.kernel.org/stable/c/357057ee55d3c99a5…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: b2383c90a9d691201b9aee557776694cde86a935 , < 5cc4eea715a3fcf4e516662f736dfee63979465f (git) Affected: b2383c90a9d691201b9aee557776694cde86a935 , < 51c0ad3b7c5b01f9314758335a13f157b05fa56d (git) Affected: b2383c90a9d691201b9aee557776694cde86a935 , < e6b0adff99edf246ba1f8d464530a0438cb1cbda (git) Affected: b2383c90a9d691201b9aee557776694cde86a935 , < a45ba33d398a821147d7e5f16ead7eb125e331e2 (git) Affected: b2383c90a9d691201b9aee557776694cde86a935 , < 5d2b286eb034af114f67d9967fc3fbc1829bb712 (git) Affected: b2383c90a9d691201b9aee557776694cde86a935 , < 1f5661388f43df3ac106ce93e67d8d22b16a78ff (git) Affected: b2383c90a9d691201b9aee557776694cde86a935 , < cf138759a7e92c75cfc1b7ba705e4108fe330edf (git) Affected: b2383c90a9d691201b9aee557776694cde86a935 , < 85db68fc901da52314ded80aace99f8b684c7815 (git) Affected: b2383c90a9d691201b9aee557776694cde86a935 , < 357057ee55d3c99a5de5abe8150f7bca04f8e53b (git)
Linux	Linux	Affected: 4.2 Unaffected: 0 , < 4.2 (semver) Unaffected: 4.9.337 , ≤ 4.9.* (semver) Unaffected: 4.14.303 , ≤ 4.14.* (semver) Unaffected: 4.19.270 , ≤ 4.19.* (semver) Unaffected: 5.4.229 , ≤ 5.4.* (semver) Unaffected: 5.10.163 , ≤ 5.10.* (semver) Unaffected: 5.15.86 , ≤ 5.15.* (semver) Unaffected: 6.0.16 , ≤ 6.0.* (semver) Unaffected: 6.1.2 , ≤ 6.1.* (semver) Unaffected: 6.2 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 7.8,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2022-50384",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-01-14T18:48:36.418605Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-416",
                "description": "CWE-416 Use After Free",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-01-14T18:53:04.397Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/staging/vme_user/vme_tsi148.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "5cc4eea715a3fcf4e516662f736dfee63979465f",
              "status": "affected",
              "version": "b2383c90a9d691201b9aee557776694cde86a935",
              "versionType": "git"
            },
            {
              "lessThan": "51c0ad3b7c5b01f9314758335a13f157b05fa56d",
              "status": "affected",
              "version": "b2383c90a9d691201b9aee557776694cde86a935",
              "versionType": "git"
            },
            {
              "lessThan": "e6b0adff99edf246ba1f8d464530a0438cb1cbda",
              "status": "affected",
              "version": "b2383c90a9d691201b9aee557776694cde86a935",
              "versionType": "git"
            },
            {
              "lessThan": "a45ba33d398a821147d7e5f16ead7eb125e331e2",
              "status": "affected",
              "version": "b2383c90a9d691201b9aee557776694cde86a935",
              "versionType": "git"
            },
            {
              "lessThan": "5d2b286eb034af114f67d9967fc3fbc1829bb712",
              "status": "affected",
              "version": "b2383c90a9d691201b9aee557776694cde86a935",
              "versionType": "git"
            },
            {
              "lessThan": "1f5661388f43df3ac106ce93e67d8d22b16a78ff",
              "status": "affected",
              "version": "b2383c90a9d691201b9aee557776694cde86a935",
              "versionType": "git"
            },
            {
              "lessThan": "cf138759a7e92c75cfc1b7ba705e4108fe330edf",
              "status": "affected",
              "version": "b2383c90a9d691201b9aee557776694cde86a935",
              "versionType": "git"
            },
            {
              "lessThan": "85db68fc901da52314ded80aace99f8b684c7815",
              "status": "affected",
              "version": "b2383c90a9d691201b9aee557776694cde86a935",
              "versionType": "git"
            },
            {
              "lessThan": "357057ee55d3c99a5de5abe8150f7bca04f8e53b",
              "status": "affected",
              "version": "b2383c90a9d691201b9aee557776694cde86a935",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/staging/vme_user/vme_tsi148.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.2"
            },
            {
              "lessThan": "4.2",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.9.*",
              "status": "unaffected",
              "version": "4.9.337",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.14.*",
              "status": "unaffected",
              "version": "4.14.303",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.270",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.229",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.163",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.86",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.0.*",
              "status": "unaffected",
              "version": "6.0.16",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.9.337",
                  "versionStartIncluding": "4.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.14.303",
                  "versionStartIncluding": "4.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.19.270",
                  "versionStartIncluding": "4.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.229",
                  "versionStartIncluding": "4.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.163",
                  "versionStartIncluding": "4.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.86",
                  "versionStartIncluding": "4.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.0.16",
                  "versionStartIncluding": "4.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.2",
                  "versionStartIncluding": "4.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.2",
                  "versionStartIncluding": "4.2",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: vme_user: Fix possible UAF in tsi148_dma_list_add\n\nSmatch report warning as follows:\n\ndrivers/staging/vme_user/vme_tsi148.c:1757 tsi148_dma_list_add() warn:\n  \u0027\u0026entry-\u003elist\u0027 not removed from list\n\nIn tsi148_dma_list_add(), the error path \"goto err_dma\" will not\nremove entry-\u003elist from list-\u003eentries, but entry will be freed,\nthen list traversal may cause UAF.\n\nFix by removeing it from list-\u003eentries before free()."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The UAF is in the TSI148 VME bridge DMA-list builder (`tsi148_dma_list_add`), reached only through the local VME DMA API (`vme_dma_list_add`) used by VME device drivers on systems with the PCI TSI148 bridge\u2014not via network packets or physical attachment alone.\nAC:L - An attacker who can drive DMA-list add/free can induce a `dma_map_single` failure (IOVA/swiotlb exhaustion), leave the freed entry linked, then trigger UAF on the next add (`prev-\u003edescriptor` write), `tsi148_dma_list_exec`, or `tsi148_dma_list_empty`; no attacker-uncontrollable race is required.\nPR:L - The VME DMA path has no `capable()`/`CAP_*` gate\u2014only whatever DAC the consuming driver/device node applies. On TSI148 industrial/DAQ deployments (the intended consumers of this EXPORT_SYMBOL API), a non-root service account with VME device access is a reasonable worst case, matching CVE-2026-64449 for this subsystem.\nUI:N - The attacker initiates the DMA-list operations that hit the err_dma path and subsequent list walk themselves; no separate victim action is required.\nS:U - This is a standard in-kernel heap UAF within the host VME bridge driver and does not cross a VM, IOMMU, or other security-authority boundary.\nC:H - Use-after-free of the linked `tsi148_dma_entry` lets an attacker reclaim the object and control contents read on later list traversal/exec, enabling arbitrary kernel memory disclosure per UAF guidance.\nI:H - The same dangling list entry is written via the next-add prev-link update, and `tsi148_dma_list_empty` can double-free/unmap with a garbage `dma_handle`, yielding heap corruption and control-flow hijack primitives.\nA:H - Any subsequent list walk of the freed entry (empty/exec/add) can oops/panic the kernel, so availability impact is High even without full exploitation."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T08:58:29.333Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/5cc4eea715a3fcf4e516662f736dfee63979465f"
        },
        {
          "url": "https://git.kernel.org/stable/c/51c0ad3b7c5b01f9314758335a13f157b05fa56d"
        },
        {
          "url": "https://git.kernel.org/stable/c/e6b0adff99edf246ba1f8d464530a0438cb1cbda"
        },
        {
          "url": "https://git.kernel.org/stable/c/a45ba33d398a821147d7e5f16ead7eb125e331e2"
        },
        {
          "url": "https://git.kernel.org/stable/c/5d2b286eb034af114f67d9967fc3fbc1829bb712"
        },
        {
          "url": "https://git.kernel.org/stable/c/1f5661388f43df3ac106ce93e67d8d22b16a78ff"
        },
        {
          "url": "https://git.kernel.org/stable/c/cf138759a7e92c75cfc1b7ba705e4108fe330edf"
        },
        {
          "url": "https://git.kernel.org/stable/c/85db68fc901da52314ded80aace99f8b684c7815"
        },
        {
          "url": "https://git.kernel.org/stable/c/357057ee55d3c99a5de5abe8150f7bca04f8e53b"
        }
      ],
      "title": "staging: vme_user: Fix possible UAF in tsi148_dma_list_add",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-50384",
    "datePublished": "2025-09-18T13:33:05.759Z",
    "dateReserved": "2025-09-17T14:53:06.997Z",
    "dateUpdated": "2026-08-05T08:58:29.333Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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EUVD-2026-344905

CVE-2022-50384 (GCVE-0-2022-50384)

Tags

Sightings

Nomenclature

Related by attack behaviour